Hydraulic actuating arrangements

Details Hydraulic actuating arrangements Hydraulic actuating arrangements

1974-12-20

1976-11-23

Blix, Trygve M.

Motors: expansible chamber type

Differential

91411A, 91465, 244 78, F15B 1116, B64C 1342

Patent

active

039929795

ABSTRACT:
A hydraulic actuator arrangement has a pair of double acting actuator devices coupled together for movement in unison. Each device has two control valves respectively operable to cause the device to move in opposite directions. The four control valves are resiliently coupled so that both actuator devices are normally energised simultaneously. Each control valve has an associated pressure relief valve so that failure of any one of the control valves permits the pressures on either side of the associated actuator device to be equalized.

REFERENCES:
patent: 1279027 (1918-09-01), Simmon et al.
patent: 2401680 (1946-06-01), Eaton
patent: 2637341 (1953-05-01), Borst
patent: 2741895 (1956-04-01), Horvath
patent: 3272062 (1966-09-01), Flippo et al.
patent: 3338139 (1967-08-01), Wood
patent: 3460440 (1969-08-01), Brent
patent: 3470692 (1969-10-01), Kamp

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